const express = require('express');
const http = require('http');
const cors = require('cors');
const helmet = require('helmet');
const morgan = require('morgan');
const dotenv = require('dotenv');
const { app: appConfig } = require('./src/config/config');
const db = require('./src/models');
const socketio = require('socket.io');
const path = require('path');

// Load env
dotenv.config();

const app = express();
const server = http.createServer(app);
const io = socketio(server, {
  cors: {
    origin: appConfig.clientUrl,
    methods: ['GET', 'POST'],
    credentials: true,
  },
});
require('./src/sockets')(io);

// Patient call scheduler
const { schedulePatientCalls } = require('./src/services/patientCallScheduler');
const PATIENT_CALL_WEBHOOK_URL = process.env.PATIENT_CALL_WEBHOOK_URL || 'http://localhost:3000/api/v1/calls/webhook'; // Set your real webhook URL here
schedulePatientCalls(PATIENT_CALL_WEBHOOK_URL);

// Middleware
app.use(cors({ origin: appConfig.clientUrl, credentials: true }));
app.use(helmet());
app.use(morgan('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));

// Serve static files from public
app.use(express.static(path.join(__dirname, 'public')));

// Attach io to app for use in routes/controllers
app.set('io', io);

// Health check
app.get('/api/health', (req, res) => res.json({ status: 'ok' }));

// Mount all API routes
app.use('/api/v1', require('./src/routes'));

// Error handler
app.use((err, req, res, next) => {
  console.error(err);
  res.status(err.status || 500).json({ error: err.message || 'Internal Server Error' });
});

// Start server
const PORT = appConfig.port;
db.sequelize.sync().then(() => {
  server.listen(PORT, () => {
    console.log(`Server running on port ${PORT}`);
  });
});